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Mathematics 8 Online
OpenStudy (anonymous):

A coil draws 15A when connected to a 220V AC 60Hz line. When it is in series with a 4 ohms resistor and the combination is connected to a 100V battery, the battery current after a long time is observed to be 10A. Find; (1) the resistance in the coil, (2) the inductance of the coil. Thanks

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